Carbon fiber hybrid composite material pipe for electric spindle of numerical control machine tool and preparation method of carbon fiber hybrid composite material pipe
A technology of composite material tubes and CNC machine tools, applied in chemical instruments and methods, manufacturing tools, metal processing equipment, etc., can solve problems such as harsh and fast response characteristics, reduced processing precision, and small deviations of tool positions, reaching a large market Effect of developmental advantages, high modulus, excellent mechanical stiffness and strength properties
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[0048] In a second aspect, the present invention provides a method for preparing the carbon fiber hybrid composite material tube for the electric spindle of a numerically controlled machine tool, comprising the following steps:
[0049] The prepreg tape formed by impregnating carbon fiber and resin is wound on the mandrel to form the inner strength layer;
[0050] Injection molding chopped carbon fiber reinforced resin on the surface of the internal strength layer to obtain the first toughened interface layer;
[0051] The prepreg tape formed by impregnating the fiber two-dimensional braided structure with resin is applied to the first toughened interface layer by vacuuming, and the autoclave is formed to obtain the intermediate transition layer;
[0052] Injection molding chopped carbon fiber reinforced resin on the surface of the intermediate transition layer to obtain the second toughened interface layer;
[0053] The carbon fiber is used for three-dimensional weaving and ...
Embodiment 1
[0062] A specific multi-layer carbon fiber composite material hybrid structure electric spindle tube includes a main body layer and an interface layer, wherein the innermost part of the main body layer is formed by impregnating T300 carbon fiber with 3K specifications and phenolic resin with a winding angle of 85° and a glue content of 60%. The prepreg tape is processed to form a winding strength layer with an inner diameter of 150mm and a thickness of 3mm, and the winding speed of the entire winding process is controlled at 200m / min. On the surface of the strength layer, T300 carbon fiber reinforced polypropylene resin with a fiber content of 55% and a chopped length of 0.2 mm is used to form a carbon fiber toughened interface layer with a thickness of 1 mm by injection molding. On the surface of the interface layer, M40 carbon fiber and T300 carbon fiber are used at a mixing ratio of 2:1 to form a pre-impregnated fabric with a resin content of 60% through a plain weave struct...
Embodiment 2
[0064] Specifically, a multi-layer carbon fiber composite material hybrid structure electric spindle tube includes a main body layer and an interface layer, wherein the innermost part of the main body layer is formed by impregnating T700 carbon fiber with a 12K specification and epoxy resin with a winding angle of 88° and a glue content of 55%. % of the prepreg tape is processed to form a winding strength layer with an inner diameter of 100mm and a thickness of 2mm, and the winding speed of the entire winding process is controlled at 150m / min. On the surface of the strength layer, T1000 carbon fiber reinforced polycarbonate resin with a fiber content of 55% and a chopped length of 0.9 mm is used to form a carbon fiber toughened interface layer with a thickness of 0.5 mm by injection molding. On the surface of the interface layer, M55 carbon fiber and T700 carbon fiber are used at a mixing ratio of 4:1 to form a pre-impregnated fabric with a resin content of 50% through a twill ...
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